[487] On account of engaging in sexual intercourse, how many offenses (āpatti) does one commit?
On account of engaging in sexual intercourse one commits four offenses: engaging in sexual intercourse with a corpse that has not been devoured, there is an offense entailing defeat (pārājika); engaging in sexual intercourse with a corpse that has for the most part been devoured, there is a grave offense (thullaccaya); inserting the male organ into an opened mouth without touching it, there is an offense of wrongdoing (dukkaṭa); in the case of the smooth lac implement (jatumaṭṭhaka), an offense entailing expiation (pācittiya). On account of engaging in sexual intercourse one commits these four offenses.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.